That moment when you realise Star Wars is in fact a very unoriginally visualised version of a pretty typical fantasy/medieval story. Let me elaborate.

Since my knowledge of Star Wars beyond the movies is very limited, and I am not a hugely dugely fan of the "original saga" I'll go with the original trilogy, which also makes more sense, as the story got gradually less so as the universe expanded.

So, rebels are attacking the empire. On a ship, to be even more precise. Obvious. The Droids (I suppose you could have some humourous gang carrying some pretty important intel, as well as a message from Leia) which somehow ends up in the slums of some city, where a farmboy finds them. Obi-Wan was obviously a former knight/battle-mageish thing. Han Solo was a rogueish person, with the local gang on his neck. Chewbacca seems to be an ethnic warrior, á la African. The point should be across by now. Darth Vader could be the King of the Empire, while Sidious could be some corrupt bishop (y'know, the whole "the bishop is the one who is really in charge") and etc. etc.